SEI Investments Company

SEICNASDAQUSD

THESIS ALERT

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$110.25
−$0.12 (−0.11%)Today 1M +5.30%
After hours$110.250.00%

Updated Nov 11, 4:00 PM ET · Regular session · May be delayed

Source valuation snapshot. Not a live recalculation.
Latest filed annual earnings; price snapshot date unavailable. Not forward P/E.
Diluted earnings per share from the latest filed annual.
$110.37
Prior regular-session close from the quote source.
$109.16–$110.78
Regular-session low and high so far today.
420.4K
Regular-session shares traded · Nov 11, 4:00 PM ET.
Jan 27 projected
Projected for 2027-01-27 from the company’s own results filings (SEC 8-K Item 2.02). The company has not confirmed the date.
$75.08–$112.15
52-week trading low and high returned by the quote source.

Understand the Business

Why the Stock Moved

Period-matched expectations history is not yet available. Current metrics are not a substitute for a historical explanation.

The core investment thesis

Own SEIC if SEI converts recurring, fee‑based client relationships and scalable technology into steadily growing revenue, high operating leverage and strong cash generation that fund shareholder returns.

SEIC price history

Latest price$110.25Today−$0.12 (-0.11%)
SEIC +5.01%S&P 500 -2.42%Since first plotted close
4 hours

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Investment thesis

What must happen next

5 MATERIAL PROPOSITIONS
  • SEI's revenue growth is driven by durable, fee‑based client mandates and platform usage (sticky demand), so revenue will continue to grow year‑over‑year absent large client defections.StrengtheningMateriality: High

    Revenue increased from $1,919,793,000 (FY 2023) to $2,125,151,000 (FY 2024) to $2,297,381,000 (FY 2025), showing multi‑year top‑line growth. If recurring client demand holds, revenue growth sustains margins and funds cash returns; if clients in‑source or move to competitors, revenue will slow and margins will compress.

    Watch: Large outsourcing wins by competitors (e.g., BlackRock/SS&C/Broadridge) or major clients choosing to in‑source platform/technology work would reduce fee revenue before it shows up in totals.

    Supporting sources

    Source notes are factual paraphrases; read the original disclosures below.

    Revenue increased from $1,919,793,000 (FY 2023) to $2,125,151,000 (FY 2024) to $2,297,381,000 (FY 2025), showing multi‑year top‑line growth.

    Open source ↗
  • Scale and a services/technology mix produce operating leverage, so operating income should grow faster than revenue while protecting margins absent aggressive price competition.StrengtheningMateriality: High

    Operating income rose from $424,524,000 (FY 2023) to $551,741,000 (FY 2024) to $627,311,000 (FY 2025), increasing faster in absolute dollars than revenue. Operating leverage drives higher operating income and return on capital; if it reverses, EPS and free cash flow will be materially weaker.

    Watch: Competitors forcing price cuts on platform/service fees or the company materially increasing SG&A or R&D (to compete) would blunt leverage and compress operating income.

    Supporting sources

    Source notes are factual paraphrases; read the original disclosures below.

    Operating income rose from $424,524,000 (FY 2023) to $551,741,000 (FY 2024) to $627,311,000 (FY 2025), increasing faster in absolute dollars.

    Open source ↗
  • Stable, high operating cash flow will continue to fund buybacks/dividends and deleveraging, converting operating results into durable EPS growth and book value accretion.StrengtheningMateriality: Medium

    Operating cash flow increased from $447,030,000 (FY 2023) to $622,343,000 (FY 2024) and remained elevated at $607,662,000 (FY 2025), indicating consistent cash generation. Strong cash conversion makes EPS growth less dependent on risky acquisitions and supports shareholder returns; if cash falls, the capital return engine weakens and EPS gains may reverse.

    Watch: Sustained revenue/fee pressure (e.g., mass AUM outflows) or materially higher working capital needs could reduce operating cash flow ahead of reported earnings.

    Supporting sources

    Source notes are factual paraphrases; read the original disclosures below.

    Operating cash flow increased from $447,030,000 (FY 2023) to $622,343,000 (FY 2024) and remained elevated at $607,662,000 (FY 2025), indicating.

    Open source ↗
  • EPS will continue to compound if revenue, operating income and cash generation remain intact and the company sustains capital returns rather than issuing equity.StrengtheningMateriality: Medium

    Diluted EPS rose from $3.46 (FY 2023) to $4.41 (FY 2024) to $5.63 (FY 2025), showing clear multi‑year EPS growth. EPS compounding is the pathway to shareholder returns and justifies a premium multiple; if EPS stops compounding, valuation will likely re‑rate lower.

    Watch: Large equity issuance to fund acquisitions or sustained margin pressure reducing net income would halt EPS growth (even if revenue holds).

    Supporting sources

    Source notes are factual paraphrases; read the original disclosures below.

    Diluted EPS rose from $3.46 (FY 2023) to $4.41 (FY 2024) to $5.63 (FY 2025), showing clear multi‑year EPS growth.

    Open source ↗
  • A strong capital base (equity and cash liquidity) gives SEI the flexibility to invest selectively or return capital without stress, preserving the operating model through cycles.StrengtheningMateriality: Medium

    Stockholders' equity increased from $1,953,824,000 (FY 2022) to $2,252,112,000 (FY 2024) to $2,447,784,000 (FY 2025), showing a growing capital base. If balance‑sheet strength holds, the company can sustain buybacks and absorb shocks; if it erodes, management will have reduced optionality and may need to cut returns or take dilutive actions.

    Watch: Large acquisitions funded with debt or significant goodwill write‑downs would weaken equity and financial flexibility.

    Supporting sources

    Source notes are factual paraphrases; read the original disclosures below.

    Stockholders' equity increased from $1,953,824,000 (FY 2022) to $2,252,112,000 (FY 2024) to $2,447,784,000 (FY 2025), showing a growing capital base.

    Open source ↗
Full investment case & evidence

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Original research

SEI's revenue growth is driven by durable, fee‑based client mandates and platform usage (sticky demand), so revenue will continue to grow year‑over‑year absent large client defections. If recurring client demand holds, revenue growth sustains margins and funds cash returns; if clients in‑source or move to competitors, revenue will slow and margins will compress.

Scale and a services/technology mix produce operating leverage, so operating income should grow faster than revenue while protecting margins absent aggressive price competition. Operating leverage drives higher operating income and return on capital; if it reverses, EPS and free cash flow will be materially weaker.

Stable, high operating cash flow will continue to fund buybacks/dividends and deleveraging, converting operating results into durable EPS growth and book value accretion. Strong cash conversion makes EPS growth less dependent on risky acquisitions and supports shareholder returns; if cash falls, the capital return engine weakens and EPS gains may reverse.

EPS will continue to compound if revenue, operating income and cash generation remain intact and the company sustains capital returns rather than issuing equity. EPS compounding is the pathway to shareholder returns and justifies a premium multiple; if EPS stops compounding, valuation will likely re‑rate lower.

A strong capital base (equity and cash liquidity) gives SEI the flexibility to invest selectively or return capital without stress, preserving the operating model through cycles. If balance‑sheet strength holds, the company can sustain buybacks and absorb shocks; if it erodes, management will have reduced optionality and may need to cut returns or take dilutive actions.

All standing thesis claims
Original report summary

SEI converts recurring, fee‑based client relationships and scalable technology into steadily growing revenue, high operating leverage and strong cash generation that fund shareholder returns.

Evidence assessed Nov 7, 2026. Expand each conclusion for its evidence and what would change it. Thesis evidence—not a buy or sell recommendation.

Bull case and bear case

Bull case and bear case for Sei Investments Co

Where the evidence on Sei Investments Co stands: Strengthening on the latest evidence (Nov 7, 2026). Of its 5 thesis points, 5 strengthening.

Bull case: what the evidence supports

  • SEI's revenue growth is driven by durable, fee‑based client mandates and platform usage (sticky demand), so revenue will continue to grow year‑over‑year absent large client defections.

    sec.gov ↗

  • Scale and a services/technology mix produce operating leverage, so operating income should grow faster than revenue while protecting margins absent aggressive price competition.

    sec.gov ↗

  • Stable, high operating cash flow will continue to fund buybacks/dividends and deleveraging, converting operating results into durable EPS growth and book value accretion.

    sec.gov ↗

  • EPS will continue to compound if revenue, operating income and cash generation remain intact and the company sustains capital returns rather than issuing equity.

    sec.gov ↗

  • A strong capital base (equity and cash liquidity) gives SEI the flexibility to invest selectively or return capital without stress, preserving the operating model through cycles.

    sec.gov ↗

Bear case: what would count against it

  • Large outsourcing wins by competitors (e.g., BlackRock/SS&C/Broadridge) or major clients choosing to in‑source platform/technology work would reduce fee revenue before it shows up in totals.

    sec.gov ↗

  • Competitors forcing price cuts on platform/service fees or the company materially increasing SG&A or R&D (to compete) would blunt leverage and compress operating income.

    sec.gov ↗

  • Sustained revenue/fee pressure (e.g., mass AUM outflows) or materially higher working capital needs could reduce operating cash flow ahead of reported earnings.

    sec.gov ↗

Thesis-Break Engine

What has broken in Sei Investments Co’s thesis

Each break OptimistFi flagged on Sei Investments Co, dated — with what has historically followed the same kind of break across the market, not a forecast for Sei Investments Co.

peers+15%-13%+1%12 mo agonow+6 mo
Daily price, then where similar breaks led across the market: the typical +1% path vs comparable companies over six months, inside the middle-half range (+15% to -13%). A base rate, not a forecast.
  • Insider-selling clustercondition set before this filing

    Across all companies, this kind of break has happened 9,137 times before. Those stocks beat comparable companies by a median of 1% over the next six months, and 30% of them trailed it by 10 points or more.

How the Thesis-Break Engine works →Historical outcomes are measured against comparable companies after past breaks of the same kind, across all companies. Not a prediction.

MARKET + FINANCIAL SNAPSHOT

The numbers behind the thesis

Sourced from filings and market data

What Changed

  1. Mixed
    Reported results of operations (earnings release).

    Sei Investments Co filed an SEC 8-K on 2026-10-21: Reported results of operations (earnings release). It is a dated development that tests the current thesis.

  2. Mixed
    Reported results of operations (earnings release).

    Sei Investments Co filed an SEC 8-K on 2026-07-22: Reported results of operations (earnings release). It is a dated development that tests the current thesis.

  3. Mixed
    Other material event.

    Sei Investments Co filed an SEC 8-K on 2026-05-28: Other material event. It is a dated development that tests the current thesis.

Risks / falsifiers

What could break the thesis

  • Large outsourcing wins by competitors (e.g., BlackRock/SS&C/Broadridge) or major clients choosing to in‑source platform/technology work would reduce fee revenue before it shows up in totals.
  • Competitors forcing price cuts on platform/service fees or the company materially increasing SG&A or R&D (to compete) would blunt leverage and compress operating income.
  • Sustained revenue/fee pressure (e.g., mass AUM outflows) or materially higher working capital needs could reduce operating cash flow ahead of reported earnings.
  • Large equity issuance to fund acquisitions or sustained margin pressure reducing net income would halt EPS growth (even if revenue holds).
  • Large acquisitions funded with debt or significant goodwill write‑downs would weaken equity and financial flexibility.

SEIC news

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Financial statements

SEIC income statement

Annual filed results · USD · Oldest to newest. Margins are calculated from the reported figures.

SEIC: quick answers

When does Sei Investments Co (SEIC) report earnings next?
Sei Investments Co's next results are projected for January 27, 2027, from the dates of its own results filings with the SEC. The company has not confirmed the date. It last reported on October 21, 2026. Earnings calendar
What is SEIC's short interest?
As of October 30, 2026, 4.0M SEIC shares were sold short, 3.41% of its shares outstanding, up 18.4% from the count before. At the stock's average daily volume that is 4.9 days to cover. FINRA publishes the count twice a month. SEIC short interest history
Have members of Congress traded SEIC?
6 trades in SEIC have been disclosed under the STOCK Act by members of Congress, the President or senior officials, none in reports made public in the last 90 days. Every disclosed SEIC trade
Which well-known investors own SEIC?
2 of the 37 well-known funds tracked here reported SEIC shares in their latest 13F filings. By share of the fund's portfolio: Markel Group (Tom Gayner), 0.1%; Bridgewater Associates (Ray Dalio), 0.1%. Fund portfolios

SEIC in well-known investors’ portfolios

2 of 37 funds reported SEIC shares in their latest 13F filing. A 13F shows quarter-end positions and arrives up to 45 days later.

FundOf its portfolioValueChangeQuarter
Tom GaynerMarkel Group0.14%$17.8MNo changeQ3 2026
Ray DalioBridgewater Associates0.05%$12.7M−37.9%Q2 2026

Every fund’s portfolio

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